Climate Data Guide: Climate data strengths, limitations and applications
From the homepage:
Like an insider’s guidebook to an unexplored country, the Climate Data Guide provides the key insights needed to select the data that best align with your goals, including critiques of data sets by experts from the research community. We invite you to learn from their insights and share your own.
There are one hundred and eleven data sets as of today on this site. Some satellite based sets, other from other sources.
Another resource that you may want to map together with other resources.
Produced by the National Center for Atmospheric Research.